Sack-holder



C. WALLDOW. SACK HOLDER. ,mucmou FILED um. 10, 1921.

1,382,150, I PatentedJune 21, 1921.

FIGURE 1 INVENTOR FIGURE 2 ATTORNEY PATiE T OFFICE.

GAB/L VVALLDOW, OF NEAR SAN JOSE, CALIFORNIA.

SACK-HOLDER.

Specification of Letters Patent.

Patented J une 21, 1921.

Application filed January 10, 1921. Serial No. 486,270.

1 0 all whom it meg concern Be it known that I, CARL NALLnow, a citizenof the United States, and residing near San Jose, in the county of SantaClara and State of California, have invented certain new and usefulImprovements in Sack- Holders, of which the following is aspecific'ation.

My invention relates particularly to that type of sacker in which thesack is automatically released by the movement of the hopper pivotallymounted on the sack frame.

It is the object of my invention to provide a device of the characterindicated which will be simple in construction, economical tomanufacture and positive in action.

In the drawing Figure 1 is a side elevation of my improved sacker.

Fig. 2 is a rear the saclrer.

Fig. 3 is a detail section through the tripping mechanism.

Referring more particularly to the drawing, I show a suitable framehaving legs 1 and top bars 2, a hopper 3 being mounted on extensions don rear legs 1 by means of hinges at 5.

The sack holding device consists of bar 6 pivoted to front legs 1 at 7and passing backward between the rear legs and formed into a loop 8 atits central rear portion, the said loop 8 having a pin 9 set therein. Tothe sides of the bar 6 are pivoted at .10 arms 11 terminating in points12 passing through holes 13 in bars 9 and normally held in an extendedposition by springs 1 1 secured to bars 2 and 6 as shown.

The device for actuating arms 11 comprises a bar 15 secured to the upperrear edge of hopper 3 by hinge 16, the said bar passing downwardly andbeing formed into a loop 17 norm ally engaging pin 9 as clearly shown inFig. 3 in solid lines.

On cross bar 18 mounted on rear legs 1 is mounted a roller 19 in thepath of travel of loop 17 of bar 15.

The result of this construction is that when hopper 3 is raised to theposition shown in dotted lines the bar 15 is forced downwardly therebyretracting the arms 11 and releasing the filled sack. The moment,however, that the loop 17 on bar 15 engages roller 19 it is forced outof engagement with pin 9 and the springs 14 are permitted to elevationof a portion of draw bar 6 and arms 11 back to a normal posltion.

The loop 17 is replaced in engagement w th pin 9 by the dropping of thehopper after an empty sack has been placed in position, through themedium of a spring 20 mounted on bar 15 and engaging a member 21 mountedon the frame of the sacker as shown.

It may thus be seen that I have provided a new and novel means ofoperating sack holding mechanism through the raising of the hopperitself, and one which is not only positive in action but simple in formand operation and economical to manufacture. The bar 15 passes under orthrough member 21 and spring 20 is so arranged that upon the downwardmovement of bar 15 the spring moves clear of member 21 and bar 15 iseasily moved outwardly by contact of loop 17 with roller 19. Upon theclosing of the hopper and the upward movement of the bar 15, however,the spring 20 reengages member 21 and forces bar 15 inwardly again sothat loop 17 readily engages pin 9 when the hopper is closed.

It is to be understood of course, that while I have herein shown anddescribed one particular embodiment of my invention changes inconstruction and method of operation may be made within the scope of theappended claims.

I claim 1. A supporting frame, a hopper pivotally mounted thereon, sackengaging pins mounted thereon, pin actuating means pivotally andresiliently mounted thereon and pivotally connected to said pins adepending bar pivotally mounted on said hopper and movable downwardly bythe raising thereof and having a loop formed on its lower end, adetachable connection between said loop and said pin actuating means,and means mounted on said frame in. the path of travel of said loopwhereby the connection between the loop and the pin actuating means isseparated on the downward movement of said bar and loop.

2. A supporting frame, a hopper pivotally mounted thereon, sack engagingpins mounted thereon, pin actuating means pivotally and resilientlymounted thereon and pivotally connected to said pins, a depending barpivotally mounted on said hopper and movable downwardly by the raisingthereof and having a loop formed on its lower end, a

detachable connection between said loop and said pin actuating means,means mounted on said frame in the path of travel of said loop wherebythe connection between the loop and the pin actuating means is broken onthe downward movement of said bar and loop, and means mounted on saidframe for effecting the reengagement of said loop and pin actuatingmeans upon the upward movement of said bar and loop. v

3. A supporting frame, a hopper pivo-tally mounted thereon, sackengaging pins mounted thereon, pin actuating means pivotally andresiliently mounted thereon and pivot- 1 ally connected to said pins, adepending bar pivotally mounted on said hopper and movable downwardlyby. the raising thereof and having a loop formed on its lower end and aspring member mounted on its outer surface, 2 a roller mounted on saidframe to engage said loop and disengage the same from said pin upon thedownward movement of said bar, and a member mounted on said frame toengage said spring member and effect the 2 reengagement of said pin andloop upon the upward movement of said bar.

' CARL lVALLDOlV.

